Home / 128,664,779.20-192,997,168.80-32,926,667.20

Finding the Fourth Proportional to 128,664,779.20, 192,997,168.80 and 32,926,667.20

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Solution

The fourth proportional to 128,664,779.20, 192,997,168.80 and 32,926,667.20 is: 49,390,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,664,779.20 : 192,997,168.80 = 32,926,667.20 : x
  2. Step 2: Convert to fraction form
    128,664,779.20/192,997,168.80 = 32,926,667.20/x
  3. Step 3: Cross multiply
    128,664,779.20x = 192,997,168.80 × 32,926,667.20
  4. Step 4: Simplify right side
    128,664,779.20x = 6,354,753,547,619,824
  5. Step 5: Solve for x
    x = 6,354,753,547,619,824/128,664,779.20
  6. Step 6: Final answer
    x = 49,390,000.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.